Rubbing machine



p 1930- H. e. BARTLING 1,775,186

RUBBING' MACHINE Filed Dec. 16, 1925 Patented Sept. 9, 1930 UNITEDsTaTEs TENT OFFICE nownn'n e. BAn'r-LING, or cnrcaeo, n-rmorsynssrenonrro SEWALL run a van- NISH conrrnmr, on Kansas 01w, mssounr, ACORPORATION or mssounr Romaine asmine,

Application filed December 16, 1925. fs erial No. 75,752.

This invention relates to improvements in rubbing machine for rubbingpolished and varnished surfaces and also the surfaces of automobiles,and one of the objects of the invention is to simplify the constructionof such a rubbing machine and thereby materially reduce the cost ofmanufacture and at the like formed to produce spaced spirally arrangedsurfaces extending in general directions lengthwise of the rubbingelement,

being originally produced preferably as a solid cylindrical mass ofmaterial, the rubbing surfaces being then produced by cutting or forminggrooves opening through the periphery of the element and extendingspirally thereabout and in directions lengthwise of the element.

A further object is to provide improved means for securing the rubbingelement to the driving shaft.

To the attainment of these ends and the accomplishment of other new anduseful objects the invention consists in the features of novelty insubstantially the construction,

' combination and arrangement of the several parts hereinafter morefully described and claimed and as shOWn in the accompanying drawing, inwhich Figure 1 is a view in side elevation of a device of this characterconstructed in accordance with the principles of this invention.

Figure 2 is a sectional View taken on line 2--2, Figure 1.

Figure 3 is an isometric view of one of the rubbing elements before thespirally arranged rubbing surfaces are formed.

Figure 4 is'a detail horizontal sectional view as taken on line 44,.Figure 2.

Figure 5 is a detail perspective view of one of'the fastening elementsfor securing the rubbing member or element to its driv- 60 ing shaft.

Figure 6 is a side elevationof one of the rubbing members.

Referring more particularly to the drawipg the numeral 10 designatesgenerally a supporting structure which may be of any desired size andconfiguration andmounted thereupon is a motor or drivin mechanism 11, aportion 12 of the structure being shaped to form a shield and a handle13 is also provided by means of which the device may be manipulated andtransported.

J ournaled in suitable bearings 14: and disposed beneath the shield 12are a pair of shafts 15 which are preferably substantially parallel andtubular and these shafts are driven through the medium of suitabledriving mechanism (not shown) so that they will rotate in opposition toeac other.

Mounted upon and secure to each of the shafts 15 is a rubbing member,and as the construction of each of these members and the method of.securing them to their respective shafts is the same, the description ofone will apply equally as well-to both.

Each of the rubbing members is preferably of sectional construction,here shown as embodying two sections or elements 15 although it is to beunderstood any desired number of sections may be employed according tothe size of the machine and the length 3f rubbing members that it isdesired to prouce.

Each of the elements 15 is originally preferably produced as a solid orhomogeneous mass of flexible rubbing material such as felt or the likeand is provided with an opening 16 of any desired diameter extendinglongitudinally therethrough and through the ends thereof.

The periphery of the element 15 is shaped in any suitable manner to formspirally arranged and spaced substantially parallel rubbing portions 17which are integral with the element and extend in general directionslengthwise of the element and form continuous work enga ing portions,the spirals on one section of t e element being arranged in oppositedirection to the spirals on the adj acent section. The work engagingportions are preferably formed by cutting away the material formin theelement, for any de sired depth, to form the spirally arranged grooves18 between the surfaces 17 and the grooves are of a de th to allow asubstantial amount of the ody of the element to forma hub '19 at thecenter thereof and through which hub portion the opening 16 passes.

The shaft 15 is preferably tubular and is of a length substantiallyequal to the combined length of two of the elements 15 ar-' as follows.

An annular member or washer 23 is provided with an inwardly projectinglug 24 and laterally projecting pins 25 which are preferably polnted,any number of. which pins may be provided and they may be of anysuitable length, but are of a length to penetrate the adjacent end ofthe element 15 for a considerable distance. The member 23 is firstsleeved upon'the shaft 15 until it abuts the nut or collar 22 and withthe projection 24 entering the groove 20 in the shaft.

One of the elements 15 is then sleeved upon the shaft and the pins 25forced into the end of the element until the element abuts the member23.

A similar annular element 26 is next sleeved upon the shaft and isprovided with a projection 27 which enters the groove 20 in the shaft.The element 26 is provided with laterally projectin impalement pins 28on one side thereof adapted to enter the other end of the element 15until the member 27 abuts the end of the element. Another element 15 issleeved upon the shaft so that the pins 29 will impale the end of theelement and said end will then abut the member 27.

An annular member 30 having im alement pins 31 projecting from one facet ereof is then sleeved upon the shaft 15 so that the pins will impalethe adjacent end of the element 15, the member 30 may also be providedwith a projection 32 adapted to enter the j v groove 20 in the shaft 15.

With this improved construction it will be manifest that the elements 15will be secured to the shaft 15 for. rotation therewith.

Obviously the elements 15 and the members 23-27 and 30 may be securedtogether before being-placed upon the shaft 15 andthey may then beplaced upon the shaft as a unit instead of being built up upon theshaft. The member 30 is preferably provided with a laterally projectingcollar or hub portion 33 which extends beyond thead'acent extremity ofthe shaft 15 to e engaged y the head 34 of a screw 35 that is threadedinto the end of the shaft 15. I

The screw 35 serves as a means for forcing the arts of the rubbingmember together and or maintaining them againstlongitudinal displacementupon the shaft. By removing the screw 35 the entire rubbing member maybe readily removed from the shaft.

A disclike rubbing element 36 of suitable rubbing material such as feltor the like is provided with a central aperture to receive the hub likeportion 33 of the member 30 and the head 34 of "the screw 35 contactswith the face of the element 36 and secures the same to the end of theshaft 15. This element 36 is of a diameter substantially equal to thediameter of the rubbing members and is provided for the purpose ofrubbing surfaces or corners which it is impossible to reach with thebody of the rubbing member. 5

To the free end of the other of the shafts 15. is secured in anysuitable manner a conically shaped or pointed rubbing element 37 and isconstructed of any suitable material and is provided for the samepurpose as the element 36.

The elements 15 of each of the rubbing members on each of the shafts 15are arranged 7 so that the spirally arranged rubbing surfaces 17 andgrooves 18 will extend about the respective rubbing members in oppositedirections with respect to each other and the spirally arranged rubbingsurfaces 17 and grooves 18 of the respective adjacent rubbing elementsof the rubbing member will be also arranged to extend about therespective members in opposite directions with respect to each other.

With this arrangement it will be manifest that the'rubbing or polishingcomposition or material that is placed upon the surface to be polishedwill not only be fed in a direction from the ends of the rubbing memberstowards the longitudinal center of the respective members, but as therubbing members rotate in opposition to each other the spirally arrangedgrooves and rubbing surfaceswill feed the rubbing compound towards thecenter of the machine.

The spirally arranged surfaces 17 will clean an uninterrupted orcontinuoussurface to be presented to the work with the result that theformation of streaks or ridges on the polished surface will be obviated.

y the provision of the rubbing element 36 on the end of one of theshafts 15 and the rubbing element 37 on the end of the other shaft 15,for rubbing in corners and between parts that cannot be'reached by themain rubbing elements, there is provided a use.

, eter of the rubbing members.

The shield 12 will prevent the rubbing material from being thrown awayfrom the machine or upon the operator.

While the preferred form of the invention has been herein shown anddescribed, it is to be understood that various changes may be made inthe details of construction and in the combination and arrangement ofthe several I l t parts, within the scope of the claims, withoutdeparting from the spirit of this invention.-

. What is claimed as new is 1. A rubbing machine including an elongatedrotatable rubbing element' formed ofa single piece of flexible textilematerial having grooves opening through the periphery thereof to fofiaabody portion having spaced flexible work engaging surfaces integraltherewith and extending in general directions lengthwise of saidelement, said surfaces being comparatively wide with relation to theirthickness.

2. A rubbing machine includin 'an elongated rotatable rubbing elementormed of exible, textile material, and a plurality of grooves openingthrough the peri hery of the element and terminating short 0 the axis ofthe elementto form a body with spaced and flexible work engagingportions integral comparatively 3. A rubbing machine includin anelongated rotatable rubbing element formed of flexible textile material,and a plurality of Birally arranged groovesopening through e peripherythereof and extending in general directions lengthwise of the elementsaid ooves terminating short of the 'axis ofv thee ement to form a bodyportion provided with spaced and continuous flexible work engaglngportions integral therewithand comparatively wide with relation to theirthickness.

4. A rubbing machine including a plurality of elongated rotatablerubbing elements,

said elements being arranged end to end, and

means mounting said elements for rotation in unison, each of saidelements embodying a body portion and spaced spirally arranged flexibletextile work engaging portions integral with the element, said portionsbeing comparatively wide with relation to their thickness, the spiralwork engaging portions on the said elements being disposed in oppositedirections.

5. A rubbing machine including a rotatable rubbing element, means forrotating-said element, and a conically shaped flexible element securedto the free end of the first said element for rotation therewith, thebase of the said conical element being disposed adjacent the-said end ofthe first said'element.

6. A rubbing machine including a shaft, a rubbing element sleeved uponthe shaft, said element including flexible work engaging surfaces, anannular member sleeved upon the shaft, interengaging means between thesaid member and shaft for securing the member for rotation with theshaft, pins on the member and impaling the end of the rubbing element,an annular member sleeved upon the shaft adjacent the other end of saidelement, pins on the last said member and impaling the other end of therubbing element, and a collar threaded upon the shaft and operating toforce one of the said annular members towards the other.

7. A rubbing machine including a shaft, a rubbing element sleeved uponthe shaft, said element including flexible work engaging surfaces, anannular member sleeved upon the shaft, interengaging means between thesaid member and shaft for securing the member for rotation with theshaft, ins on the member and impaling the end 0 the rubbing element, anannular member sleeved upon the shaft adjacent the other end of saidelement,

pins on the last said member and impaling the other end of the rubbingelement, and a collar threaded upon the shaft adj acenteach of the saidannular members and operable to force the said annular members indirections towards each other. v v 8. A rubbing machine including ashaft, a rubbing member embodying a plurality of rubbing elementssleeved thereon and arranged end to end, an annular member interposedbetween adjacent ends of the elements, gins projecting from both facesof said mem er and impaling the-adjacent end of said elements,annularmembers on the shaft adj acent the free ends of said elements, pins projecting from the last said members and impaling the respective adjacentends of the said elements, means causing said annular members to rotatewith the shaft, an abutment adjacent the' annular member at one end ofthe 'nected with the shaft adjacent the other end of the rubbing memberand operable to force the annular members in directions towards eachother.

In testimony whereof I have signed my name to this specification, onthis 14th day of December, A. D. 1925. y y

HOWARD G. BARTLING.

